On 03/12/2013 05:09 PM, Roy Stogner wrote: > > On Tue, 12 Mar 2013, David Knezevic wrote: > >> Quick question though, because I'm not sure I understand how this >> works when we're numbering in "var major" order. Suppose we have >> variables "u", "v" and "p", then the dof indices corresponding to any >> particular node would typically be very far apart when we use >> var-major ordering. And I also thought that local dof indices are >> always contiguous (i.e. they're between first_local_index and >> last_local_index), so it's not clear to me how these "very far apart" >> dof indices would end up on a single processor, i.e. the same >> processor as the node? > > The trick is that the phrase "var major" is a lie. "var major" > doesn't mean "first order by variables, then order by nodes", it means > "first order by processor id, then by variables, then by nodes".
OK, makes sense, thanks! David ------------------------------------------------------------------------------ Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_mar _______________________________________________ Libmesh-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/libmesh-users
